> Commit bd119c69239322caafdb64517a806037d0d0c70a> > "Disintegrate asm/system.h for Tile"> > created the asm/switch_to.h file, but did not add an include> of it to all its users.> > Also, commit b4816afa3986704d1404fc48e931da5135820472> > "Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h"> > introduced the concept of asm/cmpxchg.h but the tile arch> never got one. Fork the cmpxchg content out of the asm/atomic.h> file to create one.> > Cc: Chris Metcalf <cmetcalf@tilera.com>> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>